Converter



(No Model.) 2 SheetsSheet 1 O. M. ALLEN CONVERTER.

' No. 519,219. Patented May 1,1894.

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(No MbdeL) 2 Sheets-Sheet 2.

' C. M. ALLEN.

CONVERTER.

No. 519,219. Patented May 1,1894.

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IT STATES,

ATENT OFFICE.

CHARLES M. ALLEN, oF BUTTE, MONTANA.

SPECIFICATION forming part of Letters PatentNo. 519,219, datedMay 1, 1894.

i Application filed April I8, 1893. Serial No. 470,827. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES M. ALLEN, a"

citizen of the United States, residing at Butte city, Montana, have invented certain new and l useful Improvements in Converters for Smelting Ores, of which the followingis a specification.

. In the drawings, Figure 1 is a side elevation of my improved converter; Fig. 2 a transverse section taken in line 20f Fig. 1; Fig. 3 an end view of the converter, detached, and

rotated into position for discharge; and Fig.

4; a section showing the arrangement of the side and end water jackets.

In making my improved converter, I make I a cylinder, A, of the desired length and diameter. This cylinder is closed by ends B. The sides andends of the converter or con verting chamber are formed of sheetsof metal, so as to form a water space, 0, between the sheets to permit the circulation of water to preserve the converting chamber from destruction by the intense heat. sheets of the side and The inner to permit the edges to be riveted or otherwise fastened to the edges of the outer sheetsso as to obviate the necessity of making rivet or other holes through the Inner sheets, and thus avoid liability to accident which would be occasioned were there a possibility of. water-leaking into the'converting chamber.

While I have spoken ofthe converting chamber as being a cylinder, yet it is to be understood that the edges are not closed together, so that there is an opening, 17, for the admission of the material to be treated into the converting chamber, as well as to afford an exit for the smoke, dust and fumes resulting from the operation of the converter.

one or both ends of the converter, asection D,

formed of brick work or other frangible ma terial, which can be punctured to form a tap to draw OK the materialfrom time to time, as desired. I also provide a row of tuyeres E, entering the converter, preferably at the bottom, when in working position, through which a blast of air will be driven as necessary in operation. In the working position of the 5 converter, the section, D, in the end or ends,

end water jackets are I arrange, in

parts is reversed and the tuyeres enter above I the molten material, and the sections of frangible material are below the surface of the molten matter, so that when they are punctured, a desired quantity may be turned oh.

I arrange a hood, F, over the converter, to

carry 0E fumes, and provide a chute, Gr,

through which the ore to be treated may be introduced. The converter rests upon rolls, H, and inorder to rotate it,I provide around its outer surface a row of teeth I, which en- "gage with the teeth of a gear wheel, J, which may be rotated by a band on a pulley, not shown, on the shaft j, or in any other desired manner, so that from time to time, as desired, the rotating chamber may be rotated enough to bring it into its discharge position, I

and, after a desired quantityof material has been turned off, rotated back into its working position. I might say that it is intended in operation to leave a portion of the molten material in the converting chamber to assist in the ignition and melting of the succeeding charge of new orraw material, so that the operation may be continuous and not interrupted. For the reduction of the first charge, it will, of course, require fuel, as is usual in such instances. It will also be understood that it is expected that there will be sufficient sulphur in the ores treated to supply the requisite amount of fuelfor their reduction, after the firstcharge has been smelled.

1. A rotatable converter having a cylindrical converting chamber for holding molten material, tuyeres in the cylindrical portion for the admission of an air blast, a section D, of-brickwork in the end of the converter adapted to form a tap, and means for rotating the converter, substantially as described.

2. In a converter, the combination of a cylindrical convertingchamber having side and end water jackets composed of metal sheets with the edges of the inner sheets bent outwardly to overlap the edges of the outer sheets to which they are fastened, whereby rivet and combination with truncated cone-shaped Waother holes in the inner sheets are avoided, ter-jacketed ends, substantially as described. and end sections adapted to be punctured or broken to form 'a tap, substantially as de- 5 scribed. Witnesses: 3. In a converter, a cylindrical converting THOMAS A. BANNING,

" chamber having its sides water-jacketed in SAMUEL E. HIBBEN.

CHARLES M. ALLEN. 

